Pointing out a lack of fairness is seeking equality not being childish, naive or petulant. If it were ethnicity or gender and equality under scrutiny, who would defend that?
As for what can be done. Lots. There are suggestions here. First off I’d suggest stop defending the status quo. Don’t imply those wanting equality are like kids demanding equal dibs on sweets.
Start with what the nation funds. The BBC should audit its content and stop commissioning the likes of Matilda Ramsay (mediocre ability, famous dad). The civil service already take positive action as do some other key firms. More need to do this and look at their employee demographics. Demographics need to be defined - there are already working definitions based on first (Uni) generation, parental employment. There’s also lots of organisations who can help with teaching soft skills, networking, industry norms; the sort of information that isn’t readily accessible to whole demographics. Schools can reach out too to invite professionals in to share their experiences. There’s a tired old phrase that you need to ‘see it to be it’. If all you see is your parents low paid job or no job, how do you know what to reach for? Finally, be an advocate if you are able. This could be offering a work placement to a kid from a comp or even just making sure that the next role that becomes available is advertised broadly.
and yes, @mids2019 the Royals are the epitome of what’s wrong.